CN105027251A - Contact device and circuit breaker - Google Patents
Contact device and circuit breaker Download PDFInfo
- Publication number
- CN105027251A CN105027251A CN201480013002.2A CN201480013002A CN105027251A CN 105027251 A CN105027251 A CN 105027251A CN 201480013002 A CN201480013002 A CN 201480013002A CN 105027251 A CN105027251 A CN 105027251A
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- CN
- China
- Prior art keywords
- contact
- making device
- bracket component
- contact making
- connecting line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/04—Contacts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
- H01H71/526—Manual reset mechanisms which may be also used for manual release actuated by lever the lever forming a toggle linkage with a second lever, the free end of which is directly and releasably engageable with a contact structure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/123—Automatic release mechanisms with or without manual release using a solid-state trip unit
- H01H2071/124—Automatic release mechanisms with or without manual release using a solid-state trip unit with a hybrid structure, the solid state trip device being combined with a thermal or a electromagnetic trip
Abstract
A contact device (100) disposed between a fixed contact (120) and a terminal section (11) is provided with: an elastic conductive plate (110) that includes a movable contact (111), which moves to be in contact with and to be separated from the fixed contact (120), and a U-shaped attaching section (112), which is provided on the opposite side to the movable contact (111) in the longitudinal direction; a holder member (101) that holds the attaching section (112); and a connecting line (119) connected to the attaching section (112) so as to connect the contact device (100) to the terminal section.
Description
Technical field
The present invention relates to a kind of contact making device and circuit-breaker.
Background technology
Circuits circuit breaker, in the circuit connecting generators and loads, when reaching the circuit state of regulation, making to trip between contact thus cutting off circuit (for example, referring to patent documentation 1).Circuit-breaker such as comprises wiring circuit breaker, residual current circuit breaker, overvoltage release, under-voltage circuit breaker, reclosing type circuit breaker etc.Wiring circuit breaker cuts off circuit when the abnormal current caused by short circuit or overload flows through.Residual current circuit breaker cuts off circuit when there is electric leakage.Overvoltage release cuts off circuit at circuit voltage higher than during assigned voltage.Under-voltage circuit breaker cuts off circuit at circuit voltage lower than during assigned voltage.The circuit breaker that reclosing type circuit breaker is the some circuit-breakers of combination and obtains.
At first technical literature
Patent documentation
Patent documentation 1: JP 2000-231869 publication
Summary of the invention
Typical circuit-breaker possesses: contact making device, comprises to contact relative to fixed contact and leaving and the moving contact of movement; Link mechanism, makes contact making device action in response to the operation of handle; And Electromagnetic Solution buckle device, make to trip between contact via link mechanism when detecting the circuit state of regulation.The moving contact of contact making device is installed on elastic conducting electroplax.This elastic conducting electroplax passes through with portion of terminal electrical connections such as welding.There is following hidden danger, even the moving contact of contact making device repeatedly contacts relative to fixed contact and leaves, then mechanical load can be concentrated to the coupling part of elastic conducting electroplax.
The object of the invention is to, provide a kind of can prevent or reduce mechanical load to elastic conducting electroplax concentrate contact making device and circuit-breaker.
Be the contact making device be configured between fixed contact and portion of terminal according to the contact making device of an aspect of of the present present invention, possess: elastic conducting electroplax, comprise in order to relative to the contact of described fixed contact and leave and the moving contact of movement and be located at the installation portion of U-shaped of opposition side of described moving contact in the longitudinal direction; Bracket component, keeps described installation portion; And connecting line, be connected to described installation portion in order to described contact making device is connected to described portion of terminal.
In one example, described elastic conducting electroplax is installed on described bracket component be elastically compressed the state making the repulsion of described installation portion act on described bracket component at described installation portion under.
In one example, described bracket component comprises at least one catch abutted to moving with the Width that described length direction intersects with the end face of described installation portion for limiting described elastic conducting electroplax.
In one example, described conductivity conductive plate comprises and is configured to move to described length direction and the joggling part abutted with described bracket component to limit described elastic conducting electroplax.
In one example, on described bracket component, be formed and be configured to for the chimeric otch of described connecting line.
In one example, on described bracket component, be formed with through hole slightly little compared with the external diameter of described connecting line, described bracket component keeps described connecting line by the elastic repulsive force of the described connecting line be elastically compressed in described through hole.
In one example, described bracket component comprises the wound portion for being wound around described connecting line.
In one example, contact making device also possesses and touches with described connecting line and described bracket component the resin-bonded portion described connecting line being fixed on described bracket component.
In preferred example, the contact making device be configured between fixed contact and portion of terminal possesses: elastic conducting electroplax, comprises to contact relative to described fixed contact and leaving and the moving contact of movement, the U-shaped return portion being located at the opposition side of described moving contact in the longitudinal direction and the connecting portion be connected with the connecting line for described contact making device is connected to described portion of terminal; And bracket component, keep the described U-shaped return portion of described elastic conducting electroplax.
Described connecting portion can be the mode that the is sticked in described bracket component joggling part from the outside warpage of described U-shaped return portion.
Possess fixed contact, above-mentioned contact making device according to the circuit-breaker of other aspects of the present invention and link with described contact making device and make the link mechanism of described contact making device action.
According to the present invention, can obtain and can prevent or reduce for the concentrated contact making device of the mechanical load of elastic conducting electroplax and circuit-breaker.
Accompanying drawing explanation
Fig. 1 is the exploded perspective view of circuit-breaker.
Fig. 2 is the end view of the circuit-breaker under conducting state.
Fig. 3 is the end view of the circuit-breaker under overvoltage unbuckled state.
Fig. 4 is off the enlarged side view of the circuit-breaker under state.
Fig. 5 is the enlarged side view of the circuit-breaker under conducting state.
Fig. 6 is the oblique view of contact making device.
Fig. 7 is the oblique view of elastic conducting electroplax.
Fig. 8 is the end view of contact making device.
Fig. 9 is the bottom view of contact making device.
Figure 10 is the end view of the contact making device of the 1st modification.
Figure 11 is the bottom view of the contact making device of Figure 10.
Figure 12 is the end view of the contact making device of the 2nd modification.
Figure 13 is the bottom view of the contact making device of Figure 12.
Figure 14 is the end view of the contact making device of the 3rd modification.
Figure 15 is the bottom view of the contact making device of Figure 14.
Embodiment
Below, the contact making device according to an execution mode and circuit-breaker are described.
In the example in the figures, circuit-breaker can be overvoltage release.Overvoltage release becomes at the voltage of circuit and cuts off circuit higher than during assigned voltage.Overvoltage release can with cut off the circuit-breakers such as the wiring circuit breaker of circuit when short circuit or the abnormal current caused by transshipping flow through and combinationally use.
As shown in Figure 1, overvoltage release comprises the portion of terminal 11 be connected with external cable.Portion of terminal 11 can be configured at possess the 1st lid 14 and the 2nd lid 15 casing 10 in.1st lid 14 and the 2nd lid 15 can for having the synthetic resin members of insulating properties.The peristome 14a of the 1st the lid 14 and peristome 15a of the 2nd lid 15 is involutory, thus is separated out the inner space of casing 10.In the inner space of casing 10, be configured with handle 20, display unit 30, link mechanism 40, Electromagnetic Solution buckle device 90, contact making device 100 and the circuit substrate 13 of field circuit has been installed.At the upper surface of the casing 10 of overvoltage release, be formed with handle door 16 and display window 17.
As shown in FIG. 2 and 3, link mechanism 40 possesses interlock block 41, driver part 50, push rod 60, latch 70 and display latch 80.
If lever 20, then drive link mechanism 40 by push rod 60.If link mechanism 40 is driven, then the contact making device 100 being connected to link mechanism 40 rotates, thus makes fixed contact 120 carry out contacting or being separated with moving contact 111.If the voltage of circuit is higher than assigned voltage, then the field circuit of circuit substrate 13 can carry out excitation to Electromagnetic Solution buckle device 90, thus drives link mechanism 40.If drive link mechanism 40 by Electromagnetic Solution buckle device 90, then contact making device 100 rotates, thus moving contact 111 is triped from fixed contact 120.Display unit 30 rotates according to the motion of link mechanism 40, thus display action state.
As shown in FIG. 4 and 5, handle 20 possesses the rotation section 21 and handle projection 22 that comprise the 1st rotation axis 18.Rotation section 21 is rotated around the 1st rotation axis 18.1st rotation axis 18 is located at the 1st lid 14.Handle 20 is rotated around the 1st rotation axis 18 by during operation in handle projection 22.Handle projection 22 comprises the connecting rod 23 given prominence to abreast with the 1st rotation axis 18.Connecting rod 23 can be linked to the handle of other circuit-breakers.Therefore, the handle 20 of overvoltage release is rotated together with the handle of other circuit-breakers linked by this connecting rod 23.In the example in the figures, handle projection 22 is positioned at and is in conduction position (on-position) apart from during portion of terminal 11 distally, and handle projection 22 is positioned at and is in open position (off position) apart from during portion of terminal 11 nearside.Handle 20 by being such as wrapped in the handle spring 25 on the 1st rotation axis 18, rotate from conduction position to the direction of open position by normal time exert a force.In the following description, direction of rotation when sometimes being rotated from open position to conduction position by handle 20 is called " conducting direction ", and direction of rotation when being rotated from conduction position to open position by handle 20 is called in " disconnection direction ".
Interlock block 41 is supported in the 3rd rotation axis 43 rotationally.On interlock block 41, maintain one end of metal interlock rod 42.The other end of interlock rod 42 projects to outside from the 15b that cracks of the 2nd lid 15.The other end of interlock rod 42 is linked to the interlock block of other circuit-breakers.
Driver part 50, latch 70 and display unit 30 rotate around the 2nd rotation axis 19.The two ends of the 2nd rotation axis 19 are supported in casing 10.Driver part 50 exerts a force time normal along disconnection direction by driving spring 55.Driving spring 55 is combined with the 1st lid 14 and driver part 50.Handle 20 exerts a force time normal along disconnection direction by handle spring 25.Latch 70 and display unit 30 keep the both ends of late spring 75, rotate along equidirectional.Display latch 80 by as torsionspring display late spring 85 along disconnection direction normal time exert a force.
Push rod 60 can for bending to the round metal bars of U-shaped.The fore side end 61 of push rod 60 is inserted into the connecting hole 24 of handle 20.The transmission side end 62 of push rod 60 is configured at the link rod hole 54 formed with the latch piece 71 of latch 70 by the engaging tab 51 of driver part 50.This state is by the state (latch mode) of latch 70 breech lock push rod 60.Under this latch mode, the athletic meeting of handle 20 is passed to driver part 50 by push rod 60.
If driver part 50 is driven by Electromagnetic Solution buckle device 90, driver part 50 and latch 70 relatively rotate, then link rod hole 54 can be opened wide.Further, the other end of push rod 60 can be deviate from from link rod hole 54, becomes the state (clear-latch state) of the clear-latch of push rod 60.
Display latch 80 is supported in the 4th rotation axis 81 rotationally.Display latch 80 be shown late spring 85 along disconnection direction normal time force.Because the upper end 82 showing latch 80 abuts to the engaging protuberance 32 be located on the downside of display unit 30 from downside, therefore display unit 30 can not rotate along disconnection direction.The upper surface of display unit 30 plays function as the display part 31 of display circuit state.Display part 31 is divided into 2 pieces of regions.These two pieces of regions be in apart from handle 20 nearside, for showing the normal region 31a of normal condition, and be in apart from handle 20 distally, for showing the region 31b that trips of unbuckled state.Region one of 31a, 31b expose from display window 17.
Contact making device 100 is configured between fixed contact 120 and portion of terminal 11.Contact making device 100 and shifting axle 102 link, and are driven by driver part 50.
As shown in FIG. 2 and 3, circuit substrate 13 is contained in the inside of casing 10.On circuit substrate 13, be provided with by carrying out to coil 92 the Electromagnetic Solution buckle device 90 that excitation carrys out drive bolt lock assembly 70.Circuit substrate 13 can be included in the field circuit of the excitation of the coil 92 stopping Electromagnetic Solution buckle device 90 when detecting electric voltage exception.
Electromagnetic Solution buckle device 90 possesses plastic coil rack 91, coil 92, secured core 93, iron core bracket 96, movable core 97 and coil spring 98.
Secured core 93 is elements of magnetic material (such as iron etc.), is formed by sheet material.Secured core 93 is the U-iron core comprising upside leg and downside leg 95.Upside leg is inserted into the hole of coil rack 91, and the front end of upside leg is exposed from coil rack 91.In downside leg 95 pressed on ring of secured core 93, coil spring 98 is housed.Iron core bracket 96 is rotatably mounted to the holder pivots axle 96c that coil rack 91 keeps.In the front end of iron core bracket 96, be provided with abutting to the 1st abutting part 96a of the abutting part 72 of latch 70 and the 2nd abutting part 96b abutting the downside abutting part 83 to display latch 80.1st abutting part 96a is when iron core bracket 96 rotates along conducting direction, and the 1st abutting part 96a of iron core bracket 96 abuts the abutting part 72 to latch 70, thus latch 70 is rotated along disconnection direction.On iron core bracket 96, maintain the movable core 97 of the tabular be made up of magnetic material.Rotate between the position that movable core 97 can abut the front end face (magnetic pole strength) to two legs of secured core 93 at movable core 97, the position that is separated with the front end face of two legs from secured core 93.
As shown in Figure 6, contact making device 100 comprises elastic conducting electroplax 110 and keeps the bracket component 101 of elastic conducting electroplax 110.Elastic conducting electroplax 110 is connected with portion of terminal by connecting line 119.Bracket component 101 comprises the linking part 103 linked with shifting axle 102.
As shown in Figure 7, moving contact 111 is located at an end of elastic conducting electroplax 110.Elastic conducting electroplax 110 comprises the maintaining part 112 of the U-shaped of the opposition side being located at moving contact 111 in the longitudinal direction.Elastic conducting electroplax 110 is formed by the bending elastic plate with conductivity.Bracket component 101 comprises the cradle portion 104 formed in the mode that the maintaining part 112 with elastic conducting electroplax 110 is corresponding.
The handle part 105 that the cradle portion 104 of bracket component 101 comprises U-shaped and the extension 106 extended from the intermediate curved section of this handle part 105.Handle part 105 holds the installation portion 112 of movable conductive plate 110 from outside.Extension 106 is inserted into the space divided by the installation portion 112 of elastic conducting electroplax 110.On a front end and extension 106 of handle part 105, be respectively equipped with the catch 107,108 for limiting the Width movement that conductivity conductive plate 110 intersects to the length direction with elastic conducting electroplax 110.Catch 107,108 extends each other in reverse direction.Catch 107,108 can abut the side of the installation portion 112 to elastic conducting electroplax 110 separately.In the bottom of extension 106, be provided with the protuberance 109 engaged with elastic conducting electroplax 110.
The front end of the installation portion 112 of elastic conducting electroplax 110 plays function as the connecting portion be connected with connecting portion 119.In preferred example, connecting portion can for by by the front end of installation portion 112 joggling part 113 that formed of warpage outwardly.Joggling part 113 abuts the cradle portion 104 to bracket component 101.At the installation portion 112 of elastic conducting electroplax 110, the holding section 114,115 that the mode comprising the protuberance 109 clipping cradle portion 104 is formed.The part that holding section 114 can be installation portion 112 is to the inner side warpage of U-shaped and the plate obtained.Holding section 115 can be plate outstanding to the inner space of the installation portion 112 of U-shaped from joggling part 113.When elastic conducting electroplax 110 is mounted to bracket component 101, holding section 114,115 cooperates thus clamps the protuberance 109 of cradle portion 104.At the joggling part 113 of elastic conducting electroplax 110, be connected with one end of connecting line 119 by connection fittings 118.In this manual, sometimes the part except connecting portion of installation portion 112 is called " U-shaped return portion ".
When elastic conducting electroplax 110 is mounted to bracket component 101, insert from the side of cradle portion 104 under the state of the installation portion 112 of the U-shaped of elasticity of compression conductive plate 110.Now, installation portion 112 through the gap catch 107,108, and, elastic conducting electroplax 110 is moved along its length.The holding section 114 of elastic conducting electroplax 110 is pressed by this protuberance 109 when the protuberance 109 of cradle portion 104 passes and flexibly bends.When protuberance 109 abuts to holding section 115, the flexure of holding section 114 is removed, and protuberance 109 is sandwiched between holding section 114,115.Elastic conducting electroplax 110 is held in bracket component 101 by the repulsion of the installation portion 112 that have compressed.
As shown in FIG. 8 and 9, at the lower front part of the handle part 105 of cradle portion 104, be provided with the otch 105a formed for the mode that connecting line 119 is chimeric.One end of connecting line 119 is connected to the joggling part 113 of elastic conducting electroplax 110 by connection fittings 118, and is wound in the handle part 105 of cradle portion 104.The other end of connecting line 119 is connected to portion of terminal 11.
The action of overvoltage release is described with reference to Fig. 2 ~ Fig. 4.First, overvoltage release is described from the off-state shown in Fig. 4 to the switching action of the conducting state shown in Fig. 5.
At handle 20 along when rotating from open position towards conduction position (conducting direction), pressed the engaging tab 51 of driver part 50 by push rod 60, driver part 50 rotates along conducting direction.
Handoff boundary line L shown in Fig. 4,5 is the straight line that the 1st rotation axis 18 linking handle 20 obtains with the transmission side end 62 of push rod 60.If at handle 20 along in conducting direction rotary course, handoff boundary line L is crossed in the fore side end 61 of push rod 60, then the transmission side end 62 of push rod 60 stops under the state being pressed against engaging tab 51.Now, handle 20 and push rod 60 are held in conduction position, and circuit-breaker becomes conducting state.The latched spring 75 of latch 70 exerts a force, and rotates to abutting to the position of the transmission side end 62 of push rod 60.Fastener 33 driven member 50 of display unit 30 presses, and display unit 30 rotates along conducting direction, moves to display and resets position.In this condition, display latch 80 is shown late spring 83 and exerts a force, and moves to the position of breech lock display unit 30.In addition, interlock block 41 coordinates the rotation of driver part 50 to rotate along conducting direction, by interlock rod 42, the interlock block of other circuit-breakers is moved.In addition, as long as voltage is normal in the on-state, the coil 92 of Electromagnetic Solution buckle device 90 just can not be energized by field circuit.Therefore, iron core bracket 96 is exerted a force by coil spring 98, and movable core 97 is in the state leaving secured core.In this condition, the 1st abutting part 96a of iron core bracket 96 moves to the position leaving latch 70.
Then, overvoltage release is described from the conducting state shown in Fig. 5 to the switching action of the off-state shown in Fig. 4.
When handle 20 rotates from conduction position towards open position along disconnection direction, by push rod 60 tractive latch 70.The active force that latch 70 resists late spring 75 rotates along disconnecting direction, becomes the state that link rod hole 54 is opened wide up.Driver part 50 is exerted a force by driving spring 55 and rotates along disconnecting direction.Interlock block 41 is by being pressed by the jut 73 of driving spring 70, and antagonism power rotates along disconnecting direction.The latched spring 75 of display unit 30 exerts a force and rotates along disconnecting direction, and engaging protuberance 32 abuts the upper end 82 to display latch 80 and stops.In this condition, the normal region 31a of display part 31 can expose from display window 17.
Then, the action by Electromagnetic Solution buckle device 90 is described, overvoltage release from the conducting state shown in Fig. 2 and Fig. 5, the moment after triping via the overvoltage of Fig. 3, action when switching to unbuckled state.
As shown in Figure 3, if in conducting state, field circuit detects that voltage exceedes the set point (overvoltage condition) of the regulation higher than rated voltage, then in order to make overvoltage release trip, field circuit is energized to coil 92, makes secured core 93 attract movable core 97.Iron core bracket 96 and movable core 97 together rotate along conducting direction.If iron core bracket 96 rotates along conducting direction, then pressed the abutting part 72 of latch 70 by the 1st abutting part 96a of iron core bracket 96.Latch 70 rotates along disconnection direction, and the transmission side end 62 of push rod 60 leaves from the latch piece 71 of latch 70.If the latch piece 71 of latch 70 leaves from the transmission side end 62 of push rod 60, then the fore side end 61 around push rod 60 rotates along disconnection direction.
Because the transmission side end 62 of push rod 60 is deviate from from link rod hole 54, the driver part 50 therefore losing push rod 60 support is exerted a force by driving spring 55 thus rotates along disconnecting direction, moves to open position.In addition, press interlock block 41 by the jut 73 of latch 70 to upside, driven the switching mechanism of other circuit-breakers by interlock rod 42, by switching mechanism break contact.Accordingly, can cut off and the power supply of the load equipment being connected to other circuit-breakers is provided, protection load equipment.Iron core bracket 96 is rotated along conducting direction by the attraction of secured core 93 for movable core 97.
In addition, because the downside abutting part 83 showing latch 80 rotates along disconnecting direction by the 2nd abutting part pressing of iron core bracket 96, the breech lock of display unit 30 is therefore removed.If display unit 30 removes breech lock, latched spring 75 exerts a force and rotates along disconnecting direction.The region 31b that trips of display part 31 exposes from display window 17.Afterwards, if handle 20 is exerted a force by handle spring 25 and along disconnecting till direction rotates to open position, then the peristome of transmission side end 62 through link rod hole 54 of push rod 60 is inserted into link rod hole 54, till moving to the position engaged with latch piece 71.Now, the transmission side end 62 of push rod 60 is in the state being inserted into the link rod hole 54 surrounded by driver part 50 and latch 70.If make handle 20 rotate along conducting direction and move to conduction position, then become the state of Fig. 4.
According to execution mode, following effect can be played.
(1) the elastic conducting electroplax 110 being provided with moving contact 111 is held in bracket component 101.Therefore, even if repeatedly separate moving contact 111 for fixed contact 120, mechanical load with the motion of elastic conducting electroplax 110 also directly can not be passed to elastic conducting electroplax 110 and the coupling part of connecting line 119, can prevent or reduce mechanical load and concentrate to elastic conducting electroplax 110.
(2) can utilize the elastic force of elastic conducting electroplax 110 that movable conductive plate 110 is mounted to bracket component 101.Therefore, there is no need for specific purpose tool elastic conducting electroplax 110 being mounted to bracket component 101.
(3) bracket component 101 comprises catch 107,108.Therefore, it is possible to prevent from or reduce elastic conducting electroplax 110 moving in the direction of the width relative to bracket component 101 by cheap formation.
(4) elastic conducting electroplax 110 comprises the joggling part 113 of restriction elastic conducting electroplax 110 relative to the movement of the length direction of bracket component 101.Therefore, it is possible to moved in the longitudinal direction relative to bracket component 101 by the cheap elastic conducting electroplax 110 that is construed as limiting.
(5) bracket component 101 possesses the notch 105a formed for the mode that connecting line 119 is chimeric.According to this formation, bracket component 101 (being handle part 105 and otch 105a in the example in the figures) can be different from the position Supporting connectivity line 119 of connecting line 119 with the link position of elastic conducting electroplax 110.Therefore, by the Qian He of otch 105a with connecting line 119, can prevent or reduce mechanical load concentrated with the connecting portion of connecting line 119 to elastic conducting electroplax 110.
Above-mentioned execution mode such as can change as follows, also some modifications can be combined.
Elastic conducting electroplax 110 also can not be flexed into has joggling part 113.
The one side or both sides of catch 107,108 can be omitted.
The installation portion 112 of elastic conducting electroplax 110 also can be held in bracket component 101 (particularly cradle portion 104) under the state be not elastically compressed.
Contact making device 100 also can adopt in the circuit-breaker beyond overvoltage release.
Cradle portion 104 also can have through hole to replace otch 105a.Such as, in modification as shown in figs.10 and 11, in the bottom of the handle part 105 of cradle portion 104, be provided with through hole 105b slightly little compared with the external diameter of connecting line 119.Be elastically compressed in smaller through hole 105b by connecting line 119, connecting line 119 is held in cradle portion 104.In this formation, also can prevent or reduce mechanical load concentrated with the connecting portion of connecting line 119 to elastic conducting electroplax 110.
The wound portion that cradle portion 104 can have for the line 119 that is intertwined and connected replaces the 105a that cracks.Such as, in the modification such as shown in Figure 12 and Figure 13, in the bottom of the handle part 105 of cradle portion 104, be extruded with the winding rod 105c for the line 119 that is intertwined and connected.Connecting line 119 is wound in and is wound around excellent 105c, and is held in cradle portion 104.In this formation, can prevent or reduce mechanical load concentrated with the connecting portion of connecting line 119 to elastic conducting electroplax 110.
Connecting line 119 also can be fixed on cradle portion 104 by the resin-bonded portion 130 of touching with connecting line 119 and cradle portion 104, replaces cracking 105a or being appended to the 105a that cracks.Such as, in the modification such as shown in Figure 14 and Figure 15, under resin-bonded portion 130 passes through the state abutting the bottom of the handle part 105 to cradle portion 104 at connecting line 119, on connecting line 119, apply hardening cement, this hardening cement is hardened and is formed and obtain.It is concentrated with the connecting portion of connecting line 119 to elastic conducting electroplax 110 that resin-bonded portion 130 can prevent or reduce mechanical load.
Theme of the present invention likely exists with the feature fewer than all features of disclosed specific execution mode.Therefore, claims are added into detailed description, and every claim advocates that self is as independently execution mode.The present invention with reference to additional claims, together should determine with the four corner of the equivalent of additional claims institute entitle.
Claims (11)
1. a contact making device, is configured between fixed contact and portion of terminal, possesses:
Elastic conducting electroplax, comprises in order to relative to the contact of described fixed contact and leave and the moving contact of movement and be located at the installation portion of U-shaped of opposition side of described moving contact in the longitudinal direction;
Bracket component, keeps described installation portion; And
Connecting line, is connected to described installation portion in order to described contact making device is connected to described portion of terminal.
2. contact making device as claimed in claim 1, is characterized in that,
Described elastic conducting electroplax is installed in described bracket component be elastically compressed the state making the repulsion of described installation portion act on described bracket component at described installation portion under.
3. contact making device as claimed in claim 1 or 2, is characterized in that,
Described bracket component comprises at least one catch abutted to moving with the Width that described length direction intersects with the end face of described installation portion to limit described elastic conducting electroplax.
4. contact making device as claimed any one in claims 1 to 3, is characterized in that,
Described elastic conducting electroplax comprises and is configured to move to described length direction and the joggling part abutted with described bracket component to limit described elastic conducting electroplax.
5. the contact making device according to any one of Claims 1-4, is characterized in that,
On described bracket component, be formed and be configured to for the chimeric otch of described connecting line.
6. the contact making device according to any one of Claims 1-4, is characterized in that,
On described bracket component, be formed with through hole slightly little compared with the external diameter of described connecting line, described bracket component keeps described connecting line by the elastic repulsive force of the described connecting line be elastically compressed in described through hole.
7. the contact making device according to any one of Claims 1-4, is characterized in that,
Described bracket component comprises the wound portion for being wound around described connecting line.
8. the contact making device according to any one of Claims 1-4, is characterized in that,
Described contact making device also possesses and touches with described connecting line and described bracket component the resin-bonded portion described connecting line being fixed on described bracket component.
9. a contact making device, is configured between fixed contact and portion of terminal,
Described contact making device possesses elastic conducting electroplax and bracket component,
Described elastic conducting electroplax comprises:
Moving contact, in order to contact relative to described fixed contact and leave and move;
U-shaped return portion, is located at the opposition side of described moving contact in the longitudinal direction; And
Connecting portion, is connected with the connecting line for described contact making device being connected to described portion of terminal;
Described bracket component keeps the described U-shaped return portion of described elastic conducting electroplax.
10. contact making device as claimed in claim 9, is characterized in that,
Described connecting portion is the mode that the is sticked in described bracket component joggling part from the outside warpage of described U-shaped return portion.
11. 1 kinds of circuit-breakers, possess fixed contact, contact making device described in any one of claim 1 to 10 and link with described contact making device and make the link mechanism of described contact making device action.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013074667A JP2014199756A (en) | 2013-03-29 | 2013-03-29 | Contact apparatus and circuit breaker |
| JP2013-074667 | 2013-03-29 | ||
| PCT/JP2014/001021 WO2014155966A1 (en) | 2013-03-29 | 2014-02-26 | Contact device and circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105027251A true CN105027251A (en) | 2015-11-04 |
| CN105027251B CN105027251B (en) | 2017-09-26 |
Family
ID=51622989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480013002.2A Expired - Fee Related CN105027251B (en) | 2013-03-29 | 2014-02-26 | Contact making device and circuit-breaker |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2014199756A (en) |
| CN (1) | CN105027251B (en) |
| WO (1) | WO2014155966A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6074720B2 (en) * | 2013-06-11 | 2017-02-08 | パナソニックＩｐマネジメント株式会社 | Electromagnetic trip device and circuit breaker |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1282090A (en) * | 1999-07-27 | 2001-01-31 | 松下电工株式会社 | Circuit breaker |
| JP2002329450A (en) * | 2001-04-27 | 2002-11-15 | Matsushita Electric Works Ltd | Earth leakage breaker |
| JP2003272507A (en) * | 2002-03-20 | 2003-09-26 | Matsushita Electric Works Ltd | Circuit breaker |
| CN1777969A (en) * | 2003-11-04 | 2006-05-24 | 三菱电机株式会社 | Circuit breaker |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6044348U (en) * | 1983-09-05 | 1985-03-28 | 富士電機株式会社 | circuit break |
| JPH06101291B2 (en) * | 1986-01-10 | 1994-12-12 | 松下電工株式会社 | Circuit breaker |
| JP2503680Y2 (en) * | 1990-11-27 | 1996-07-03 | 富士電機株式会社 | Contact open / close mechanism of earth leakage breaker |
| JP4395023B2 (en) * | 2003-11-04 | 2010-01-06 | 三菱電機株式会社 | Circuit breaker |
-
2013
- 2013-03-29 JP JP2013074667A patent/JP2014199756A/en active Pending
-
2014
- 2014-02-26 WO PCT/JP2014/001021 patent/WO2014155966A1/en active Application Filing
- 2014-02-26 CN CN201480013002.2A patent/CN105027251B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1282090A (en) * | 1999-07-27 | 2001-01-31 | 松下电工株式会社 | Circuit breaker |
| JP2002329450A (en) * | 2001-04-27 | 2002-11-15 | Matsushita Electric Works Ltd | Earth leakage breaker |
| JP2003272507A (en) * | 2002-03-20 | 2003-09-26 | Matsushita Electric Works Ltd | Circuit breaker |
| CN1777969A (en) * | 2003-11-04 | 2006-05-24 | 三菱电机株式会社 | Circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105027251B (en) | 2017-09-26 |
| JP2014199756A (en) | 2014-10-23 |
| WO2014155966A1 (en) | 2014-10-02 |
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Granted publication date: 20170926 Termination date: 20200226 |